deposito's in het oosten van continenten
Azië
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
Russia, Turkey
Afrika
Egypt, Ethiopia, Ghana, South Africa
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
Europa
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland
Germany, Greece, Iceland, Norway, Poland
anderen
Groenland
Nog niet gevonden
deposito's in het westen van continenten
Noord Amerika
Canada, Cuba, Jamaica, USA
Canada, USA
Zuid-Amerika
Bolivia, Brazil, Colombia, Ecuador, Paraguay
Brazil
deposito's in Oceanië continent
Australië
New South Wales, New Zealand, Western Australia
South Australia, Western Australia